Test methods of unoperation characteristics against the atmospheric radio noise of the radio telegraphic auto-alarm receiver at 500kHz. Tsuushin sougou kenkyusho kihou(review of the communications research laboratory) Vol.29, No.150 March 1983, pp.317-333
Test methods of unoperation characteristics against the atmospheric radio noise of the radio telegraphic auto-alarm receiver at 500kHz. Tsuushin sougou kenkyusho kihou(review of the communications research laboratory) Vol.29, No.150 March 1983, pp.317-333